Better Nether Portals

Evidence

Ran on Kiln's test stand (2026-11-04): BetterNetherPortalsFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/world/level/block/Portal.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.minecraft.client.renderer.block.BlockStateModelSet
• net.minecraft.client.resources.model.ModelManager
• net.minecraft.client.resources.model.sprite.Material
• net.minecraft.client.resources.model.sprite.Material.Baked
• net.minecraft.core.Direction.Axis
• net.minecraft.core.Direction.AxisDirection
• net.minecraft.core.component.DataComponents
• net.minecraft.core.particles.ParticleTypes
• net.minecraft.server.MinecraftServer
• net.minecraft.util.BlockUtil
• net.minecraft.util.BlockUtil.FoundRectangle
• net.minecraft.world.entity.EntityDimensions
• net.minecraft.world.entity.Relative
• net.minecraft.world.entity.ai.village.poi.PoiManager
• net.minecraft.world.entity.ai.village.poi.PoiManager.Occupancy
• net.minecraft.world.entity.ai.village.poi.PoiRecord
• net.minecraft.world.entity.ai.village.poi.PoiTypes
• net.minecraft.world.entity.player.Abilities
• net.minecraft.world.item.DyeColor
• net.minecraft.world.level.BlockGetter
• net.minecraft.world.level.block.NetherPortalBlock
• net.minecraft.world.level.block.Portal
• net.minecraft.world.level.block.Portal.Transition
• net.minecraft.world.level.border.WorldBorder
• net.minecraft.world.level.dimension.DimensionType
• net.minecraft.world.level.material.FluidState
• net.minecraft.world.level.material.Fluids
• net.minecraft.world.level.portal.PortalForcer
• net.minecraft.world.level.portal.PortalShape
• net.minecraft.world.level.portal.TeleportTransition
• net.minecraft.world.level.portal.TeleportTransition.PostTeleportTransition
• net.minecraft.world.phys.shapes.VoxelShape
• Minecraft.getModelManager()
• BlockPos.distSqr()
• BlockPos.offset()
• BlockPos.subtract()
• Direction.fromAxisAndDirection()
• Identifier.tryParse()
• ServerLevel.dimensionType()
• and 47 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Build Nether portals in any shape or orientation, closed obsidian frame, light with flint and steel, and walk through.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file BetterNetherPortals-26.3.jar. The scan reads the mod's classes; it does not run them.